Double-roller door mounting



c. E. EKLIND -DOUBLE .DOOR `IOUNTIING mad sept. 1s. 1924 s shuts-sagt 1sept` 1,'1925. 1,551,736

A C. E. EKLIND DOUBLE ROLLER DGOR MOUNTING Filed sept. 13, 1924 :sSheets-sunt 2 e Y v sept. 1, 192s. 1,551,136

c. E. EKLIND 'DOUBLE ROLLER Doon louurms Filed sept. 13, 1924 ssheets-shut s Patented Sept. l, 1925.

1,551,736 UNITED sTATEs PATENT OFFICE,

CARL E. EI'ILIND, or nEnwYN, ILLINOIS, AssIGNon 'ro CAMEL COMPANY, oroIIIcAGo,

ILLINOIS, .A :CORPORATION oF ILLINOIS.

DOUBLE-ROLLER Doon MOUNTING.

Application tilted September 13, 1924. Serial N o. 737,521.

and close a doorway by movements in the plane-of thek door, andparticularly to that type of door 'mountings inwhich a hanger yor otherform-of bracket secured to the door,

is supported on a pair of rollers throughv the medium of a carriagepivotedto the bracket atan intermediate `,point in orderv to permityboth rollers to maintain their bearing upon the track oni which-,theyltravel;

The object of the present invention is to provide a constructionoffdouble roller doorv mounting of simple,fcheap, durable andconveniently assembled Vconstruction,`V and especially adapted for useon freight cars vor,v

in other situations where rough usage is encountered. Accordingly, theVinvention consists 1n providing a pair of rollers, bean ing pinstherefor, with or withoutinterposed antifriction elements, av carriageforxthe rollers, a pivotal bearing for the carriage, anda hanger orbracketfor Aattachment to the door, all broughttogether in theiroperative relations by whatI shall herein term progressiveassembly?.That is to say` the rollers `are confined `against lateral displacementby introducing them into frame-like pockets formed in the' carriage; thecarriage is supported on the rollers by bearing pins passingtransversely through the fra-mes and rollers; the bearing pins aresecured in the frames, in atleast onedireotion, by the assembly of thecarriage with the hanger, one cheek of which overlaps the ends of thepins, confinement of said bearing pins inthe other direction being-accomplished either by a shoulder on each` pin abutting against thewall of the carriage frame, or Vby having aVK second cheek upon thehangerf which overlaps-the end ofthe; pin; the 'carriage beingv@confined (laterally :withV relation .tov the vhan-ger'preferably byintroducing it between Y roller and its tical displacement in the spacethus provided for' it by means of a load-bearingpivot pin Vpassing'transversely through the cheeks and throughy the carriage;A and thepivot pin -being secured against displacementfin one direction by ashouldered, abutment ofthe pin against one of the cheeks and inl theother direction by 'xing a key, inthe form of a pin plate or the like,across the section ofthe pivot pin, and entering a hole inthe pivot pin,when the key is at the shouldered end of the pivot pin or merelyoverlying the end ofthe pivot pin when located at the end from which thepivot pin is introduced.

Inasmuch asfthe several features of the in `illustrated in theaccompanying drawings,

inwhich Figures l to t illustrate one embodiment ofthe presentinvention, Figure l heilig a frontielevation of portions of av freightcar body and its door, together lwith the door fmounting; Figure 2beinga verticalsection on the line 2"f-2" lof yFigure 1; Figure 8, avertical sectionV onthe line Vitx-3" of Figure l; and Figure 4 being ahorizontal section on the line 4X x ofy Figure 1.

Figures 5 to 9 illustrate an embodiment of the present invention,designed particu- Ylarly as a bottom support mounting for doors, I"igure being a front elevation of portionsof alfreight car body anditsdoor,

.withthe mounting applied thereto; Figure 6, ,a vertical section on theline (iX- 6X of Figure 5; Figure 7, a verticalsection on the line'. .x-X of Figure 5; Figure 8, a lhorizontal section on the line 8"--8"y ofFigure 5; and Figure 9,a view similar to Figure? but with slightlymodified construction, illustrating the use of a bushing between thejournal pin, instead of anti- .friction rollers. i i

. yFigures 10 to 12 illustratean embodiment of the invention as appliedin a situation similar to that illustrated Figi'iresj'l to 4, butshowingV a ,different construction of bracket or hanger anda diiferentnieth'odv4 et securing' the pivot pin, Figure 10 being a front"elevation of a freight car body and its door with the mounting appliedthereto; Figure 11, a vertical: section; orrthe; line-` 11X11x of Figure10; andi Figure 12, a, top

plan view with the car body in section on the line 12X-12X of Figure11.15.

Figures 13 and 14 are, respectively, a front elevation and top plan viewof the hanger substantially as employed in Figures 10 to 12, but havingmodified construction of' confining key for the pivot pin.

Figure 15 is a view corresponding generally to Figures 2 and 11, butshowing a modified` construction of pivotal support of the bracket orhanger upon the carriage, and means for securing the carriage thereon.

Referring to Figures 1 to 4,` Arepresents a portion of a freight carbody equipped witha known construction of. channel-iron track B for' adoor mounting, and C represents a portion of a. door associatedtherewith through the medium ofv a bracketv 1 and apair of rollers 2 onwhichsaid bracket is supported through the .medium of a carriage 3pivotally connected with the bracket through the medium of aload-sustaining pivotA pin 4. These elements. have heretofore beenemployedin the same general relationship as herein illustrated g; butthe present invention involvesnovel and'advantageous features intheconstruction of several of these elements and in the method of theirassembly, which will not be described.

As shown more clearly in Figure 4, carriage 8 is constructed on eitherside of its hub 5, with a frame G, providinga bracket 'T into which theroller 2 is introduced vertically and by which the roller isconfinedlaterally, and ajournal pin 8' by means of which the roller is confinedwithin its pocket, imparts its load, and? is passed through the sidewalls 9, 10, ofV theframelike end of the carriage.

HThe carriage 3 is assembled with the bracket 1 by introducing itvertically into the pocket 1S defined by the front cheek 11 and rearcheek 1Q, and offsetting web 19 of the bracket, and securingV itthere,with freedom of pivotal action, through means of the pivot pin 4 whichpasses transversely through both cheeks and the intervening carriage hub5; and in order that this assembly of the carriage with the bracket mayserve toholdthe journal pins: 8 in place and render imfnecessaryV othermeans for securing' the pins in the walls of' the carriage, bracket 1 isconstructed, preferably at the front, with laterally extendingl ears 13.that overlie the ends of pins 8; the opposite ends of said pins beingAconfined against movement in the direction away 'from the conears V13,according to the present embodiment, by seating said pins in the rearwalls. 10 of the pockets, through the medium of squared and shoulderedends 14. The journal pins may, however, as hereinafter described withreference to Figures 5 to 9, inclusive, be confined at both4 ends byoverlapping cheek extensions. Pivot pin 4 is confined against axialdisplacement with front and!` rearY cheeks 11, 12, according to thepresent embodiment, by means of' a cotter orl other pin 15 passeddiametrically through the pivot pin beyond one of the cheeks, forinstance the front cheek 11, thereby securing thev pin against movementin one direction; movement of the pin in the opposite direction beingresisted by providing the end of the pin with a squared and shoulderedconstruction asshown at 16, and which enters the correspondingly formedseat in the bracket cheek.A

From the foregoing it will be seen that the several elements et the'door mounting are so constructed that they can be progressivelyassembledi in the sense that each member is secured' in place byv theintroduction of the member that follows it, only the last member, namelythe pivot pin, requiring the use of special securing means. It willialso be seen that by utilizing the squared and shouldered ends 14 on thejlournavll pins 8l and the similarly constructed endA 16 on)Y the pivotpin 4, as thel means for seating' said pinsagainst axial movement in onedirection, said? pins are preventedfrom rotating in the parts in whichthey are mounted, and thus wear is restricted' to the surface ot the'pin and prevented' fromv tal-:ing place in the mountings.

It will further be seen that` the method of assembly of the rollerswiththecarriage admits of the use of antifrietion elements 17 betweenthe rollers and their journal pins, which elements, like the rollers 6,are confined by the mere introduction of the parts in posi-tion.

According to Figures to 9, inclusive, which show the invention asapplied to a bottom support for doors, thebracket 1a has its front cheek11a developed laterally into a form which adapts ist to serve as: themeans of attacliment to the door C', and the rearcheek 12a, offsettherefrom by the web 19, is likewise developed laterally until it formsthe rear wall of the pocket 18-m in which the carriage 3a is confined.rEli-us, as shown more clearly in Figures 7 to 9", cheeks 11a, 12a,constitute the means of confining journal pins 8 in both; axialdirections, i-n their bearings in iront and rear pocket walls 9a, 10a,while leaving the latter to confine the rollers 2a as. well as theiranti-friction elements which may be in the form of an annular series etrollers 17n as shown in Figure 7, ori a mere bushing 17M, as shown inFigure 9. As shown Figures. 5, 6, 7 and 9, pivot pin 4, instead of beingseatedY through squared and' shouldered end as in Figure l to Figure 4,may be held in both directions by the key pin V15a which passes throughnot only the pivot pin but through the hub-.like cheek extension 11a".

According to Figures 1U, 11, and 12, bracket 1b functioning in allrespects sim'n ilarly to the bracket 1 disclosed in Figures 1 to 4, hasits front cheek 11b and rear cheek 12b spaced apart by the web 19blocated beneath the'carriage 3b instead of above it, as in previouslydescribed forms; a key pin 15", mounted in ribs 20upon the front cheek11", merely lies lacross the front end face of the pivot pin 4b,inasmuch as the squared and shouldered end 16b of the latter'is seatedin the rear cheek 12b. In this form, the assembly of the rollers 2b withthe carriage 3", is in all respects substantially as described inconnection with Figures 1 to 4.

According to Figures 13 and 14, key pin 15c is in the form of a narrowstrip or plate inserted in lugs 20c so that it lies across the forwardvface of the pin 4, which latter is otherwise constructed and assembledas,

shown in Figures 10 to 12.4 In Figures 10 to 14, the front cheek 11chas' lapping ears 13c for confinement of the journal pins 8,

' just as described in connection with Figures As shown in Figure 15,the carri-age 3d with its' rollers 2d mounted therein, and

which will be 'assumed toy follow theV teachings of Figures 1l to 4 and10 to 12, may be mounted on thebracket llwithout the use of therearcheek, namely by constructnal pins in said rollers, a carriage in whichi said journal pins are mounted, a bracket, anda pivot pin supportingsaid bracket upon said carriage, said bracket being constructed toconine thejournal pins in said carriage. Y f y 2. The combination ofafpair of rollers, pins upon which said rollers revolve, a carriageconstructed with pockets receiving said Y 3. In a door mounting, a pairot rollers, a

carriage constructed with frame-like ends providing pockets receivingsaid rollers by vertical assembly, and having side wallscon-- liningsaid rollers in the-.direction of their axes, journal'pins passingthrough said side walls and intervening rollers, a bracket adapted tosaid carriage andhaving a cheek which Voverlies the ends of the journalpins and confines them in said side walls, and

means for securing the bracket to the carriage. n

4. In a door mounting, a pair of rollers, a carriage, journal pinsmounting said rollers in said carriage, and a pivot pin for mounting`the bracket upon the carriage; said `bracket having front and rearcheeks providing a pocket in which said carriage is received, said pivotpin passing through said cheeks and the intervening carriage.l

5. In a railway mounting tor doors, a pair of rollers, a carriage havingwalls between which the rollers are confined, pins passing through thewalls and supporting the rollers therein, a. bracket pivotally mountedupon the carriage at a point intermediate of the rollers, and lateralextensions on the bracket,

overlying the ends of the pins and confining the pins in place in thecarriage, while leaving the extensions tree to partake of swingingmovements of the bracket.

6. In a railway mounting for doors a pair of rollers, a carriage mountedon saidiollers,

Va bracket, and means for connecting said bracket with said carriageycomprising front and rear cheeks on the bracket, a pivot pinpassingthrough one of saidrcheeks, then through the interveningcarriage, and having a shouldered end through which it is seated n theother Cheek, and a key pin eX'- teiiding across a section of saidpivot'pin.

Signed at Chicago, Illinois, thisth day of September, 192

CARL E. EKLIND.

